A team of six police officers — four Belgian and two French — came under fire immediately after they opened the door of the apartment on Rue du Dries, Belgium's federal prosecutors' office said Wednesday.

The office said that an Algerian suspect who had a Kalashnikov rifle was killed by a police sniper — and that two other people targeted in the raid were still on the run.

Belkaid Mohammed, 35, was "neutralized by a special forces sniper when he tried to open fire towards the police from a window of the flat where he was hiding," according to the prosecutors' statement. It said his body was found during a "subsequent house search" after the raid ended.

Mohammed had been living illegally in Belgium and was not previously known to authorities except for a case of theft in 2014, the statement added. Shots were fired at officers "many" times over a number of hours, it said.

Later, another Kalashnikov was found following a search of another house at nearby Rue de L’Eau.

This gun was recovered during the main raid in Brussels.Belgian prosecutors

Two people brought in for questioning have been released without charge, the prosecutor's office said.

A spokesman for Belgium's federal prosecutor declined to answer questions from reporters at a press conference Wednesday, saying only that the investigation was ongoing.